Service difficulty report · Pilot Valve

Difficulty date
December 8, 2004
Submitted
March 3, 2005
Operation
General aviation
Part
Pilot Valve
Part number
210332210316
Condition
Corroded
Location
Csu
Component
Csu · Woodward
Component part number
B210761
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) CSU WAS INVOLVED IN A PROP STRIKE THEREFORE OH IS MANDATORY. UPON DISASSY OF CSU IT WAS DISCOVERED THAT THE PILOT VALVE PN 210332 WAS PITTED AND CORRODED ON THE BALL BEARING RACE SURFACE. THE FLYWEIGHT DRIVER PN 210317 AND THE FLYWEIGHT HEAD PN 210316 AND THE FLYWEIGHT DRIVE SPRING PN 192662 WERE CORRODED BEYOND REUSE.THE CORROSION WAS OBSERVED ON THE EXTERNAL SURFACES. THE OVERHAUL WAS COMPLETED USING SERVICEABLE PARTS WHILE THE U/S COMPONETS WERE RETURNED TO OUR CUSTOMER.